Protect your vehicle, caravan or camper's electrical system with this 150A Surface Mount IP67 Waterproof Circuit Breaker. Designed as a resettable alternative to a fuse, this circuit breaker safeguards your wiring and connected accessories from damage caused by overcurrent, short circuits, or electrical faults, while allowing for quick and easy manual reset without the hassle of sourcing a replacement fuse.

Unlike a traditional fuse that must be discarded and replaced after it blows, this circuit breaker simply trips when current exceeds 150A and can be manually reset once the fault is cleared, saving you time and the inconvenience of running out of spares in the field. Its fully sealed IP67 waterproof housing makes it well suited to the harsh conditions of 4WD touring, camping and marine use, where dust, mud and water exposure are a constant risk to unprotected electrical components.

Rated for higher current draw than smaller breakers in the range, this 150A unit is well suited to heavier-duty applications such as large dual battery systems, high-output DC-DC chargers, inverters and winches. The surface-mount design allows for straightforward installation in a battery box, canopy, engine bay, or custom accessory panel.

Features & Benefits

• 150A rated for high-current DC circuit protection
• IP67 waterproof rating protects against dust, mud and water ingress
• Manual reset function — no need to replace fuses after a trip
• Surface-mount design for simple, straightforward installation
• Suitable for 12V and 24V electrical systems
• Protects wiring and accessories from overcurrent and short circuit damage
• Well suited to heavier-duty loads such as inverters, DC-DC chargers and winches
• Durable housing built to withstand vibration and harsh conditions
• Compact design suited to battery boxes, canopies and engine bays
• Reliable, resettable alternative to traditional fuses

Suitable For

• 4WDs and dual-cab utes with heavy-duty dual battery or auxiliary power setups
• Caravans and camper trailers
• Boats and marine applications
• Inverters, DC-DC chargers, winches and other high-draw accessory wiring
• Custom-built 4WD switch and accessory panels

This is a universal-fit accessory and is not vehicle-specific. Please confirm current draw requirements and mounting space before purchasing.

Common Signs You May Need a Circuit Breaker Upgrade

• Currently relying on fuses that are inconvenient to replace in the field
• Wiring high-draw accessories such as winches, inverters or DC-DC chargers
• Exposure to water, mud or dust affecting existing electrical protection
• Retrofitting or upgrading a heavy-duty dual battery or auxiliary power system
• Replacing a corroded, damaged or unreliable existing breaker or fuse holder

Fitting a 150A surface mount IP67 waterproof circuit breaker gives your electrical system reliable, resettable overcurrent protection for heavier loads, keeping your accessories safe and your setup ready for the next trip.